Integrate Sofar HYD KTL-3PH inverters into the Home Assistant

I’m writing this article because I was worried for a long time whether I would be able to integrate my PV system into Home Assistant. However, integrating the Sofar system works perfectly.

To integrate a HYD KTL-3PH inverter into Home Assistant, I use the ‘Solarman Stick Logger’ (https://github.com/davidrapan/ha-solarman) integration.

This can be easily installed via HACS. There are already enough instructions for this.

The integration is now configured as follows via Settings, Integrations:

A total of 139 entities are currently read out, so presumably all the sensors relevant to you.

I have created two sensors in configuration.yaml:

Today’s profit from the feed-in

YAML
  - sensor:
      - name: "sofar-export-today-gains"
        unique_id: sofar.complete.gains.day
        unit_of_measurement: ""
        state_class: measurement
        device_class: monetary
        state: >
          {% set export = states('sensor.sofar_today_energy_export') | float(0) %}
          {{ (export * 0.0794) | round(2) }}

The complete profit from the PV system, i.e. including feed-in tariff and self-consumption.

YAML
 - sensor:
      - name: "sofar-today-gains"
        unique_id: sofar.today.gains
        unit_of_measurement: ""
        state: >
          {% set produktion = states('sensor.sofar_today_production') | float(0) %}
          {% set einspeisung = states('sensor.sofar_today_energy_export') | float(0) %}
          {% set netzbezug = states('sensor.sofar_today_energy_import') | float(0) %}
          {% set eigenverbrauch = produktion - einspeisung %}
          {% set eigenwert = eigenverbrauch * 0.29 %}
          {% set einspeisewert = einspeisung * 0.079 %}
          {% set netzkosten = netzbezug * 0.29 %}
          {{ (eigenwert + einspeisewert - netzkosten) | round(2) }}

ESP32 DIY Energy Display with ESPHome

In this guide, you’ll learn how to set up an ESP32 board to display sensor data from Home Assistant and connected I²C sensors on a 20×4 LCD display. This setup is perfect for monitoring solar power production, indoor temperatures, CO₂ levels, and more — all in real-time!

Continue reading “ESP32 DIY Energy Display with ESPHome”